Any of the stick planes seem to fly great. Be it an ugly sitck, ultra stick etc. I've several over the years and even considered getting one for my 7 year old daughter as her second plane since with flaperons they can be slowed waaaayy down.

Anyway for a second plane you might also look at the World Models Sky Raider Mach 1 or Mach 2. For $70-75 they are a great deal. I have not flown the Mach 1 yet, it'll be my daughters for her birthday, but the kit looks fantastic, all laser cut wood, and I have heard that they fly great. Semi-symmetrical wing and 65.5" span should fly slow and still be reasonably aerobatic if you want.